<template>
  <li 
  :class='isEnter?"active":"" '
  @mouseenter="mouseChangeHandle('enter')"
  @mouseleave="mouseChangeHandle('leave')"
  >
    <label>
      <input type="checkbox" :checked='done' @click='checkedHandle(id)'/>
      <span>{{thing}}</span>
    </label>
    <button class="btn btn-danger" @click='singleDeleteHandle(id)'>删除</button>
  </li>
</template>

<script>
export default {
  name: "Item",
  props:['id','thing','done','checkedHandle','singleDeleteHandle'],
  data(){
    return {
      isEnter:false
    }
  },
  methods:{
    // 移入移出
    mouseChangeHandle(type){
      this.isEnter = type === 'enter'
    }
  }
};
</script>

<style scoped>
/*item*/
li {
  list-style: none;
  height: 36px;
  line-height: 36px;
  padding: 0 5px;
  border-bottom: 1px solid #ddd;
}

li label {
  float: left;
  cursor: pointer;
}

li label li input {
  vertical-align: middle;
  margin-right: 6px;
  position: relative;
  top: -1px;
}

li button {
  float: right;
  display: none;
  margin-top: 3px;
}

li:before {
  content: initial;
}

li:last-child {
  border-bottom: none;
}

li.active {
  background:khaki
}
li.active button{
  display: block;
}
</style>